package com.jdbc.pet;

import com.alibaba.druid.pool.DruidDataSourceFactory;
import javax.sql.DataSource;
import java.sql.Connection;
import java.util.Properties;

public class DataSourceUtils {
    private static DataSource dataSource;

    static {
        // 读取配置文件
        Properties properties = new Properties();
        try {
            properties.load(DataSourceUtils.class.getClassLoader().getResourceAsStream("druid.properties"));
            dataSource = DruidDataSourceFactory.createDataSource(properties);
        } catch (Exception e) {
            throw new RuntimeException("读取druid.properties文件失败！", e);
        }
    }

    public static Connection getConnection() {
        if (dataSource != null) {
            try {
                return dataSource.getConnection();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return null;
    }
}
